The process of formation of electricity is:
1. To produce electricity, magnets and coils that generate electricity are needed. Magnets have a magnetic force that attracts metals such as iron. The range reached by this force is called the magnetic field. By moving the coil through this magnetic field, the coil generates electricity. However, in a strong magnetic field, if the coil cannot be moved (without causing a change in magnetic force), electricity cannot be produced.
2. Thermal power generation uses thermal energy generated by the combustion of coal, oil, liquefied natural gas and other fuels to heat water in the boiler water pipes and convert it into steam at high temperature and high pressure. drives the steam turbine to rotate, thereby driving the generator to produce electricity.
3. Hydroelectricctricity, by building dams, the potential energy of water flowing from high to low is converted into kinetic energy. At this time, the hydraulic turbine installed in the lower parts of the watercourse is driven. by the flow of water to rotate, transforming the water into kinetic energy. The water turbine is connected to the generator to cause the generator to rotate and convert mechanical energy into electrical energy.
4. Nuclear power generation, for example using nuclear power to heat water in a reactor to produce steam. Driven by steam, the steam turbine rotates the generator to produce electrical energy.
5. Solar thermal power generation uses a heat collection device to collect solar thermal energy and heat water in the water pipe to generate steam, which in turn drives the turbine generator to produceelectricity.
Properties of electricity:
The matter around us is made up of atoms. Atoms themselves also have a structure consisting of a nucleus and electrons outside. nucleus, where , the number of negatively charged electrons is equal to the number of positively charged protons in the nucleus.
When two objects rub against each other, some of the electrons will be transferred. This is the phenomenon of electrification by friction. The electricity thus obtained is also called static electricity. When we put on or take off sweaters, we may feel "electricity", which is caused by the recombination and discharge of static electricity.
There are many free electrons in the metal wire. When the coil of the metal wire moves in the magnetic field, electrons are moved by the magnetic field, and voltage and current are generated in the wire. the pricencipe of the generator discovered by Faraday. It should be noted that no matter how complex the electrical phenomenon, the total number of charges is always conserved, that is, equal amounts of positive and negative charges are always produced and annihilated at the same time.